Use struct sctp_sack_info instead ====================================================== WARNING: possible circular locking dependency detected netlink: 8 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor6'. Unknown options in mask 4 4.15.0-rc9+ #215 Not tainted ------------------------------------------------------ Unknown options in mask 4 syz-executor2/5657 is trying to acquire lock: (&xt[i].mutex){+.+.}, at: [<00000000622788df>] xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 but task is already holding lock: (sk_lock-AF_INET6){+.+.}, at: [<000000006265f84b>] lock_sock include/net/sock.h:1463 [inline] (sk_lock-AF_INET6){+.+.}, at: [<000000006265f84b>] ipv6_setsockopt+0xff/0x150 net/ipv6/ipv6_sockglue.c:927 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (sk_lock-AF_INET6){+.+.}: lock_sock_nested+0xc2/0x110 net/core/sock.c:2780 lock_sock include/net/sock.h:1463 [inline] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:922 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 -> #1 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1673 clusterip_config_entry_put net/ipv4/netfilter/ipt_CLUSTERIP.c:114 [inline] clusterip_tg_destroy+0x389/0x6e0 net/ipv4/netfilter/ipt_CLUSTERIP.c:508 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:659 __do_replace+0x79d/0xa50 net/ipv4/netfilter/ip_tables.c:1094 do_replace net/ipv4/netfilter/ip_tables.c:1150 [inline] do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1680 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1260 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2899 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 -> #0 (&xt[i].mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 xt_request_find_target+0x2c/0xb0 net/netfilter/x_tables.c:255 find_check_entry.isra.7+0x669/0xcf0 net/ipv6/netfilter/ip6_tables.c:572 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:749 do_replace net/ipv6/netfilter/ip6_tables.c:1165 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1691 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 rawv6_setsockopt+0x4a/0xf0 net/ipv6/raw.c:1060 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 other info that might help us debug this: Chain exists of: &xt[i].mutex --> rtnl_mutex --> sk_lock-AF_INET6 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sk_lock-AF_INET6); lock(rtnl_mutex); lock(sk_lock-AF_INET6); lock(&xt[i].mutex); *** DEADLOCK *** 1 lock held by syz-executor2/5657: #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006265f84b>] lock_sock include/net/sock.h:1463 [inline] #0: (sk_lock-AF_INET6){+.+.}, at: [<000000006265f84b>] ipv6_setsockopt+0xff/0x150 net/ipv6/ipv6_sockglue.c:927 stack backtrace: CPU: 0 PID: 5657 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #215 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_circular_bug.isra.37+0x2cd/0x2dc kernel/locking/lockdep.c:1218 check_prev_add kernel/locking/lockdep.c:1858 [inline] check_prevs_add kernel/locking/lockdep.c:1971 [inline] validate_chain kernel/locking/lockdep.c:2412 [inline] __lock_acquire+0x30a8/0x3e00 kernel/locking/lockdep.c:3426 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 xt_find_target+0x44/0x1e0 net/netfilter/x_tables.c:229 xt_request_find_target+0x2c/0xb0 net/netfilter/x_tables.c:255 find_check_entry.isra.7+0x669/0xcf0 net/ipv6/netfilter/ip6_tables.c:572 translate_table+0xf52/0x1690 net/ipv6/netfilter/ip6_tables.c:749 do_replace net/ipv6/netfilter/ip6_tables.c:1165 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1691 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 rawv6_setsockopt+0x4a/0xf0 net/ipv6/raw.c:1060 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fd9107c7c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fd9107c8700 RCX: 0000000000453299 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 0000000000000000 R08: 00000000000004a0 R09: 0000000000000000 R10: 0000000020006a60 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f33f R14: 00007fd9107c89c0 R15: 0000000000000000 Unknown options in mask 4 TCP: request_sock_TCPv6: Possible SYN flooding on port 20026. Sending cookies. Check SNMP counters. netlink: 11 bytes leftover after parsing attributes in process `syz-executor1'. sctp: [Deprecated]: syz-executor3 (pid 5962) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 11 bytes leftover after parsing attributes in process `syz-executor1'. sctp: [Deprecated]: syz-executor3 (pid 5962) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead syz-executor4 (6106) used greatest stack depth: 16416 bytes left Cannot find add_set index 0 as target Cannot find add_set index 0 as target ipt_CLUSTERIP: Please specify destination IP ipt_CLUSTERIP: Please specify destination IP sctp: [Deprecated]: syz-executor6 (pid 6352) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor6 (pid 6364) Use of int in maxseg socket option. Use struct sctp_assoc_value instead SELinux: unrecognized netlink message: protocol=0 nlmsg_type=40042 sclass=netlink_route_socket pig=6407 comm=syz-executor3 syz-executor4 uses obsolete (PF_INET,SOCK_PACKET) SELinux: unrecognized netlink message: protocol=0 nlmsg_type=40042 sclass=netlink_route_socket pig=6407 comm=syz-executor3 netlink: 17 bytes leftover after parsing attributes in process `syz-executor6'. sctp: [Deprecated]: syz-executor0 (pid 6449) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 17 bytes leftover after parsing attributes in process `syz-executor6'. x_tables: ip_tables: REJECT target: only valid in filter table, not  sctp: [Deprecated]: syz-executor0 (pid 6467) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor5': attribute type 25 has an invalid length. netlink: 'syz-executor5': attribute type 25 has an invalid length. openvswitch: netlink: Flow set message rejected, Key attribute missing. TCP: request_sock_TCPv6: Possible SYN flooding on port 20006. Sending cookies. Check SNMP counters. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor3': attribute type 21 has an invalid length. ipt_rpfilter: unknown options encountered ip_tables: iptables: counters copy to user failed while replacing table ipt_rpfilter: unknown options encountered netlink: 'syz-executor3': attribute type 8 has an invalid length. netlink: 'syz-executor3': attribute type 8 has an invalid length. IPv4: Oversized IP packet from 127.0.0.1 IPv4: Oversized IP packet from 127.0.0.1 IPv4: Oversized IP packet from 127.0.0.1 IPv4: Oversized IP packet from 127.0.0.1 kauditd_printk_skb: 15 callbacks suppressed audit: type=1400 audit(1517262552.489:37): avc: denied { ioctl } for pid=6857 comm="syz-executor7" path="socket:[16121]" dev="sockfs" ino=16121 ioctlcmd=0x8946 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1517262552.501:38): avc: denied { listen } for pid=6857 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 audit: type=1400 audit(1517262552.603:39): avc: denied { getopt } for pid=6893 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. sctp: [Deprecated]: syz-executor1 (pid 7053) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead audit: type=1400 audit(1517262553.038:40): avc: denied { map } for pid=7044 comm="syz-executor7" path="socket:[16272]" dev="sockfs" ino=16272 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=tcp_socket permissive=1 sctp: [Deprecated]: syz-executor1 (pid 7053) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead xt_limit: Overflow, try lower: 0/0 TCP: request_sock_TCPv6: Possible SYN flooding on port 20010. Sending cookies. Check SNMP counters. netlink: 'syz-executor3': attribute type 16 has an invalid length. netlink: 'syz-executor3': attribute type 16 has an invalid length. Cannot find add_set index 0 as target Cannot find add_set index 0 as target xt_connbytes: Forcing CT accounting to be enabled ipt_CLUSTERIP: Please specify destination IP ipt_CLUSTERIP: Please specify destination IP audit: type=1400 audit(1517262554.120:41): avc: denied { create } for pid=7472 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1517262554.160:42): avc: denied { write } for pid=7472 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1517262554.161:43): avc: denied { getattr } for pid=7472 comm="syz-executor3" path="socket:[17629]" dev="sockfs" ino=17629 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? audit: type=1400 audit(1517262554.455:44): avc: denied { setopt } for pid=7610 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1 sctp: [Deprecated]: syz-executor7 (pid 7613) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor7 (pid 7613) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor7 (pid 7680) Use of int in maxseg socket option. Use struct sctp_assoc_value instead IPv4: Oversized IP packet from 127.0.0.1 sctp: [Deprecated]: syz-executor7 (pid 7696) Use of int in maxseg socket option. Use struct sctp_assoc_value instead bridge0: port 1(syz4) entered blocking state audit: type=1400 audit(1517262554.972:45): avc: denied { map } for pid=7786 comm="syz-executor3" path=2F616E6F6E5F6875676570616765202864656C6574656429 dev="hugetlbfs" ino=17864 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:hugetlbfs_t:s0 tclass=file permissive=1 bridge0: port 1(syz4) entered disabled state device syz4 entered promiscuous mode bridge0: port 1(syz4) entered blocking state bridge0: port 1(syz4) entered forwarding state IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready netlink: 'syz-executor7': attribute type 11 has an invalid length. netlink: 'syz-executor7': attribute type 11 has an invalid length. ipt_CLUSTERIP: unknown mode 3 xt_TCPMSS: Only works on TCP SYN packets ipt_CLUSTERIP: unknown mode 3 NFQUEUE: number of queues (8) out of range (got 65542) netlink: 'syz-executor6': attribute type 29 has an invalid length. nla_parse: 8 callbacks suppressed netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor6'. TCP: request_sock_TCPv6: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. audit: type=1400 audit(1517262555.699:46): avc: denied { accept } for pid=8060 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables syz-executor2: vmalloc: allocation failure: 17179082752 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) syz-executor2 cpuset=/ mems_allowed=0 CPU: 0 PID: 8295 Comm: syz-executor2 Not tainted 4.15.0-rc9+ #215 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 warn_alloc+0x19a/0x2b0 mm/page_alloc.c:3299 __vmalloc_node_range+0x4f0/0x650 mm/vmalloc.c:1775 __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1826 kvmalloc_node+0x82/0xd0 mm/util.c:406 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774 translate_table+0x235/0x1690 net/ipv6/netfilter/ip6_tables.c:704 do_replace net/ipv6/netfilter/ip6_tables.c:1165 [inline] do_ip6t_set_ctl+0x370/0x5f0 net/ipv6/netfilter/ip6_tables.c:1691 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0x115/0x150 net/ipv6/ipv6_sockglue.c:928 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2899 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978 SYSC_setsockopt net/socket.c:1849 [inline] SyS_setsockopt+0x189/0x360 net/socket.c:1828 entry_SYSCALL_64_fastpath+0x29/0xa0 RIP: 0033:0x453299 RSP: 002b:00007fd9107c7c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000453299 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000013 RBP: 00000000000005ca R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020001fde R11: 0000000000000212 R12: 00000000006f7b90 R13: 00000000ffffffff R14: 00007fd9107c86d4 R15: 0000000000000000 Mem-Info: active_anon:56034 inactive_anon:63 isolated_anon:0 active_file:3472 inactive_file:8323 isolated_file:0 unevictable:0 dirty:6390 writeback:0 unstable:0 slab_reclaimable:7988 slab_unreclaimable:87994 mapped:24108 shmem:70 pagetables:717 bounce:0 free:1439534 free_pcp:286 free_cma:0 Node 0 active_anon:224136kB inactive_anon:252kB active_file:13888kB inactive_file:33292kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:96432kB dirty:25560kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 71680kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2868 6378 6378 Node 0 DMA32 free:2939272kB min:30316kB low:37892kB high:45468kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129292kB managed:2939976kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:704kB local_pcp:704kB free_cma:0kB lowmem_reserve[]: 0 0 3510 3510 Node 0 Normal free:2802956kB min:37096kB low:46368kB high:55640kB active_anon:224136kB inactive_anon:252kB active_file:13888kB inactive_file:33292kB unevictable:0kB writepending:25560kB present:4718592kB managed:3594332kB mlocked:0kB kernel_stack:4448kB pagetables:2868kB bounce:0kB free_pcp:452kB local_pcp:260kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 4*4kB (M) 5*8kB (M) 3*16kB (M) 3*32kB (M) 1*64kB (M) 3*128kB (M) 3*256kB (M) 2*512kB (M) 2*1024kB (M) 1*2048kB (M) 716*4096kB (M) = 2939272kB Node 0 Normal: 53*4kB (UME) 19*8kB (UME) 166*16kB (UM) 414*32kB (UE) 220*64kB (UME) 79*128kB (UE) 25*256kB (UE) 27*512kB (UME) 78*1024kB (UM) 8*2048kB (UME) 646*4096kB (M) = 2802956kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 11864 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 328415 pages reserved SELinux: failure in selinux_parse_skb(), unable to parse packet SELinux: failure in selinux_parse_skb(), unable to parse packet IPVS: length: 760 != 24 IPVS: length: 760 != 24 xt_addrtype: output interface limitation not valid in PREROUTING and INPUT xt_addrtype: output interface limitation not valid in PREROUTING and INPUT RDS: rds_bind could not find a transport for 255.255.255.254, load rds_tcp or rds_rdma? TCP: request_sock_TCPv6: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. kauditd_printk_skb: 2 callbacks suppressed audit: type=1400 audit(1517262557.765:49): avc: denied { write } for pid=8758 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1 audit: type=1400 audit(1517262557.888:50): avc: denied { read } for pid=8819 comm="syz-executor7" path="socket:[19653]" dev="sockfs" ino=19653 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 ip_tables: iptables: counters copy to user failed while replacing table sctp: [Deprecated]: syz-executor3 (pid 8870) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor3 (pid 8870) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead xt_CT: No such helper "pptp" xt_CT: No such helper "pptp" mip6: mip6_destopt_init_state: spi is not 0: 3640918016 mip6: mip6_destopt_init_state: spi is not 0: 3640918016 sctp: [Deprecated]: syz-executor1 (pid 9113) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead insert transport fail, errno -17 sctp: [Deprecated]: syz-executor1 (pid 9113) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead syz-executor0 (9128) used greatest stack depth: 14688 bytes left sctp: [Deprecated]: syz-executor5 (pid 9164) Use of int in maxseg socket option. Use struct sctp_assoc_value instead device lo entered promiscuous mode